-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathembedded-tcl.cc
1286 lines (1286 loc) · 31.4 KB
/
embedded-tcl.cc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
static char code[] = "\n\
if {[info commands package] == \"\"} {\n\
error \"version mismatch: library\\nscripts expect Tcl version 7.5b1 or later but the loaded version is\\nonly [info patchlevel]\"\n\
}\n\
package require -exact Tcl 8.5.10\n\
\n\
\n\
if {![info exists auto_path]} {\n\
if {[info exists env(TCLLIBPATH)]} {\n\
set auto_path $env(TCLLIBPATH)\n\
} else {\n\
set auto_path \"\"\n\
}\n\
}\n\
namespace eval tcl {\n\
variable Dir\n\
foreach Dir [list $::tcl_library [file dirname $::tcl_library]] {\n\
if {$Dir ni $::auto_path} {\n\
lappend ::auto_path $Dir\n\
}\n\
}\n\
set Dir [file join [file dirname [file dirname \\\n\
[info nameofexecutable]]] lib]\n\
if {$Dir ni $::auto_path} {\n\
lappend ::auto_path $Dir\n\
}\n\
catch {\n\
foreach Dir $::tcl_pkgPath {\n\
if {$Dir ni $::auto_path} {\n\
lappend ::auto_path $Dir\n\
}\n\
}\n\
}\n\
\n\
if {![interp issafe]} {\n\
variable Path [encoding dirs]\n\
set Dir [file join $::tcl_library encoding]\n\
if {$Dir ni $Path} {\n\
lappend Path $Dir\n\
encoding dirs $Path\n\
}\n\
}\n\
\n\
namespace eval mathfunc {\n\
proc min {args} {\n\
if {[llength $args] == 0} {\n\
return -code error \\\n\
\"too few arguments to math function \\\"min\\\"\"\n\
}\n\
set val Inf\n\
foreach arg $args {\n\
if {[catch {expr {double($arg)}} err]} {\n\
return -code error $err\n\
}\n\
if {$arg < $val} { set val $arg }\n\
}\n\
return $val\n\
}\n\
proc max {args} {\n\
if {[llength $args] == 0} {\n\
return -code error \\\n\
\"too few arguments to math function \\\"max\\\"\"\n\
}\n\
set val -Inf\n\
foreach arg $args {\n\
if {[catch {expr {double($arg)}} err]} {\n\
return -code error $err\n\
}\n\
if {$arg > $val} { set val $arg }\n\
}\n\
return $val\n\
}\n\
namespace export min max\n\
}\n\
}\n\
\n\
\n\
if {(![interp issafe]) && ($tcl_platform(platform) eq \"windows\")} {\n\
namespace eval tcl {\n\
proc EnvTraceProc {lo n1 n2 op} {\n\
set x $::env($n2)\n\
set ::env($lo) $x\n\
set ::env([string toupper $lo]) $x\n\
}\n\
proc InitWinEnv {} {\n\
global env tcl_platform\n\
foreach p [array names env] {\n\
set u [string toupper $p]\n\
if {$u ne $p} {\n\
switch -- $u {\n\
COMSPEC -\n\
PATH {\n\
if {![info exists env($u)]} {\n\
set env($u) $env($p)\n\
}\n\
trace add variable env($p) write \\\n\
[namespace code [list EnvTraceProc $p]]\n\
trace add variable env($u) write \\\n\
[namespace code [list EnvTraceProc $p]]\n\
}\n\
}\n\
}\n\
}\n\
if {![info exists env(COMSPEC)]} {\n\
if {$tcl_platform(os) eq \"Windows NT\"} {\n\
set env(COMSPEC) cmd.exe\n\
} else {\n\
set env(COMSPEC) command.com\n\
}\n\
}\n\
}\n\
InitWinEnv\n\
}\n\
}\n\
\n\
\n\
\n\
if {[interp issafe]} {\n\
package unknown {::tcl::tm::UnknownHandler ::tclPkgUnknown}\n\
} else {\n\
if {$::tcl_platform(os) eq \"Darwin\"\n\
&& $::tcl_platform(platform) eq \"unix\"} {\n\
package unknown {::tcl::tm::UnknownHandler \\\n\
{::tcl::MacOSXPkgUnknown ::tclPkgUnknown}}\n\
} else {\n\
package unknown {::tcl::tm::UnknownHandler ::tclPkgUnknown}\n\
}\n\
\n\
\n\
namespace eval ::tcl::clock [list variable TclLibDir $::tcl_library]\n\
\n\
proc clock args {\n\
namespace eval ::tcl::clock [list namespace ensemble create -command \\\n\
[uplevel 1 [list namespace origin [lindex [info level 0] 0]]] \\\n\
-subcommands {\n\
add clicks format microseconds milliseconds scan seconds\n\
}]\n\
\n\
\n\
foreach cmd {add format scan} {\n\
proc ::tcl::clock::$cmd args {\n\
variable TclLibDir\n\
source -encoding utf-8 [file join $TclLibDir clock.tcl]\n\
return [uplevel 1 [info level 0]]\n\
}\n\
}\n\
\n\
return [uplevel 1 [info level 0]]\n\
}\n\
}\n\
\n\
\n\
if {[namespace which -command exec] eq \"\"} {\n\
\n\
\n\
set auto_noexec 1\n\
}\n\
\n\
\n\
if {[namespace which -command tclLog] eq \"\"} {\n\
proc tclLog {string} {\n\
catch {puts stderr $string}\n\
}\n\
}\n\
\n\
\n\
proc unknown args {\n\
variable ::tcl::UnknownPending\n\
global auto_noexec auto_noload env tcl_interactive\n\
\n\
\n\
set cmd [lindex $args 0]\n\
if {[regexp \"^:*namespace\\[ \\t\\n\\]+inscope\" $cmd] && [llength $cmd] == 4} {\n\
set arglist [lrange $args 1 end]\n\
set ret [catch {uplevel 1 ::$cmd $arglist} result opts]\n\
dict unset opts -errorinfo\n\
dict incr opts -level\n\
return -options $opts $result\n\
}\n\
\n\
catch {set savedErrorInfo $::errorInfo}\n\
catch {set savedErrorCode $::errorCode}\n\
set name $cmd\n\
if {![info exists auto_noload]} {\n\
if {[info exists UnknownPending($name)]} {\n\
return -code error \"self-referential recursion\\\n\
in \\\"unknown\\\" for command \\\"$name\\\"\";\n\
}\n\
set UnknownPending($name) pending;\n\
set ret [catch {\n\
auto_load $name [uplevel 1 {::namespace current}]\n\
} msg opts]\n\
unset UnknownPending($name);\n\
if {$ret != 0} {\n\
dict append opts -errorinfo \"\\n (autoloading \\\"$name\\\")\"\n\
return -options $opts $msg\n\
}\n\
if {![array size UnknownPending]} {\n\
unset UnknownPending\n\
}\n\
if {$msg} {\n\
if {[info exists savedErrorCode]} {\n\
set ::errorCode $savedErrorCode\n\
} else {\n\
unset -nocomplain ::errorCode\n\
}\n\
if {[info exists savedErrorInfo]} {\n\
set ::errorInfo $savedErrorInfo\n\
} else {\n\
unset -nocomplain ::errorInfo\n\
}\n\
set code [catch {uplevel 1 $args} msg opts]\n\
if {$code == 1} {\n\
set errorInfo [dict get $opts -errorinfo]\n\
set errorCode [dict get $opts -errorcode]\n\
set cinfo $args\n\
if {[string bytelength $cinfo] > 150} {\n\
set cinfo [string range $cinfo 0 150]\n\
while {[string bytelength $cinfo] > 150} {\n\
set cinfo [string range $cinfo 0 end-1]\n\
}\n\
append cinfo ...\n\
}\n\
append cinfo \"\\\"\\n (\\\"uplevel\\\" body line 1)\"\n\
append cinfo \"\\n invoked from within\"\n\
append cinfo \"\\n\\\"uplevel 1 \\$args\\\"\"\n\
set expect \"$msg\\n while executing\\n\\\"$cinfo\"\n\
if {$errorInfo eq $expect} {\n\
dict unset opts -errorinfo\n\
dict incr opts -level\n\
return -options $opts $msg\n\
}\n\
set expect \"\\n invoked from within\\n\\\"$cinfo\"\n\
set exlen [string length $expect]\n\
set eilen [string length $errorInfo]\n\
set i [expr {$eilen - $exlen - 1}]\n\
set einfo [string range $errorInfo 0 $i]\n\
if {$errorInfo ne \"$einfo$expect\"} {\n\
error \"Tcl bug: unexpected stack trace in \\\"unknown\\\"\" {} \\\n\
[list CORE UNKNOWN BADTRACE $einfo $expect $errorInfo]\n\
}\n\
return -code error -errorcode $errorCode \\\n\
-errorinfo $einfo $msg\n\
} else {\n\
dict incr opts -level\n\
return -options $opts $msg\n\
}\n\
}\n\
}\n\
\n\
if {([info level] == 1) && ([info script] eq \"\") \\\n\
&& [info exists tcl_interactive] && $tcl_interactive} {\n\
if {![info exists auto_noexec]} {\n\
set new [auto_execok $name]\n\
if {$new ne \"\"} {\n\
set redir \"\"\n\
if {[namespace which -command console] eq \"\"} {\n\
set redir \">&@stdout <@stdin\"\n\
}\n\
uplevel 1 [list ::catch \\\n\
[concat exec $redir $new [lrange $args 1 end]] \\\n\
::tcl::UnknownResult ::tcl::UnknownOptions]\n\
dict incr ::tcl::UnknownOptions -level\n\
return -options $::tcl::UnknownOptions $::tcl::UnknownResult\n\
}\n\
}\n\
if {$name eq \"!!\"} {\n\
set newcmd [history event]\n\
} elseif {[regexp {^!(.+)$} $name -> event]} {\n\
set newcmd [history event $event]\n\
} elseif {[regexp {^\\^([^^]*)\\^([^^]*)\\^?$} $name -> old new]} {\n\
set newcmd [history event -1]\n\
catch {regsub -all -- $old $newcmd $new newcmd}\n\
}\n\
if {[info exists newcmd]} {\n\
tclLog $newcmd\n\
history change $newcmd 0\n\
uplevel 1 [list ::catch $newcmd \\\n\
::tcl::UnknownResult ::tcl::UnknownOptions]\n\
dict incr ::tcl::UnknownOptions -level\n\
return -options $::tcl::UnknownOptions $::tcl::UnknownResult\n\
}\n\
\n\
set ret [catch {set candidates [info commands $name*]} msg]\n\
if {$name eq \"::\"} {\n\
set name \"\"\n\
}\n\
if {$ret != 0} {\n\
dict append opts -errorinfo \\\n\
\"\\n (expanding command prefix \\\"$name\\\" in unknown)\"\n\
return -options $opts $msg\n\
}\n\
if {$name eq \"\"} {\n\
set cmds $candidates\n\
} else {\n\
set cmds [list]\n\
foreach x $candidates {\n\
if {[string first $name $x] == 0} {\n\
lappend cmds $x\n\
}\n\
}\n\
}\n\
if {[llength $cmds] == 1} {\n\
uplevel 1 [list ::catch [lreplace $args 0 0 [lindex $cmds 0]] \\\n\
::tcl::UnknownResult ::tcl::UnknownOptions]\n\
dict incr ::tcl::UnknownOptions -level\n\
return -options $::tcl::UnknownOptions $::tcl::UnknownResult\n\
}\n\
if {[llength $cmds]} {\n\
return -code error \"ambiguous command name \\\"$name\\\": [lsort $cmds]\"\n\
}\n\
}\n\
return -code error \"invalid command name \\\"$name\\\"\"\n\
}\n\
\n\
\n\
proc auto_load {cmd {namespace {}}} {\n\
global auto_index auto_path\n\
\n\
if {$namespace eq \"\"} {\n\
set namespace [uplevel 1 [list ::namespace current]]\n\
}\n\
set nameList [auto_qualify $cmd $namespace]\n\
lappend nameList $cmd\n\
foreach name $nameList {\n\
if {[info exists auto_index($name)]} {\n\
namespace eval :: $auto_index($name)\n\
if {[namespace which -command $name] ne \"\"} {\n\
return 1\n\
}\n\
}\n\
}\n\
if {![info exists auto_path]} {\n\
return 0\n\
}\n\
\n\
if {![auto_load_index]} {\n\
return 0\n\
}\n\
foreach name $nameList {\n\
if {[info exists auto_index($name)]} {\n\
namespace eval :: $auto_index($name)\n\
if {[namespace which -command $name] ne \"\"} {\n\
return 1\n\
}\n\
}\n\
}\n\
return 0\n\
}\n\
\n\
\n\
proc auto_load_index {} {\n\
variable ::tcl::auto_oldpath\n\
global auto_index auto_path\n\
\n\
if {[info exists auto_oldpath] && ($auto_oldpath eq $auto_path)} {\n\
return 0\n\
}\n\
set auto_oldpath $auto_path\n\
\n\
\n\
set issafe [interp issafe]\n\
for {set i [expr {[llength $auto_path] - 1}]} {$i >= 0} {incr i -1} {\n\
set dir [lindex $auto_path $i]\n\
set f \"\"\n\
if {$issafe} {\n\
catch {source [file join $dir tclIndex]}\n\
} elseif {[catch {set f [open [file join $dir tclIndex]]}]} {\n\
continue\n\
} else {\n\
set error [catch {\n\
set id [gets $f]\n\
if {$id eq \"# Tcl autoload index file, version 2.0\"} {\n\
eval [read $f]\n\
} elseif {$id eq \"# Tcl autoload index file: each line identifies a Tcl\"} {\n\
while {[gets $f line] >= 0} {\n\
if {([string index $line 0] eq \"#\") \\\n\
|| ([llength $line] != 2)} {\n\
continue\n\
}\n\
set name [lindex $line 0]\n\
set auto_index($name) \\\n\
\"source [file join $dir [lindex $line 1]]\"\n\
}\n\
} else {\n\
error \"[file join $dir tclIndex] isn't a proper Tcl index file\"\n\
}\n\
} msg opts]\n\
if {$f ne \"\"} {\n\
close $f\n\
}\n\
if {$error} {\n\
return -options $opts $msg\n\
}\n\
}\n\
}\n\
return 1\n\
}\n\
\n\
\n\
proc auto_qualify {cmd namespace} {\n\
\n\
set n [regsub -all {::+} $cmd :: cmd]\n\
\n\
\n\
\n\
if {[string match ::* $cmd]} {\n\
if {$n > 1} {\n\
return [list $cmd]\n\
} else {\n\
return [list [string range $cmd 2 end]]\n\
}\n\
}\n\
\n\
\n\
if {$n == 0} {\n\
if {$namespace eq \"::\"} {\n\
return [list $cmd]\n\
} else {\n\
return [list ${namespace}::$cmd $cmd]\n\
}\n\
} elseif {$namespace eq \"::\"} {\n\
return [list ::$cmd]\n\
} else {\n\
return [list ${namespace}::$cmd ::$cmd]\n\
}\n\
}\n\
\n\
\n\
proc auto_import {pattern} {\n\
global auto_index\n\
\n\
\n\
if {![string match *::* $pattern]} {\n\
return\n\
}\n\
\n\
set ns [uplevel 1 [list ::namespace current]]\n\
set patternList [auto_qualify $pattern $ns]\n\
\n\
auto_load_index\n\
\n\
foreach pattern $patternList {\n\
foreach name [array names auto_index $pattern] {\n\
if {([namespace which -command $name] eq \"\")\n\
&& ([namespace qualifiers $pattern] eq [namespace qualifiers $name])} {\n\
namespace eval :: $auto_index($name)\n\
}\n\
}\n\
}\n\
}\n\
\n\
\n\
if {$tcl_platform(platform) eq \"windows\"} {\n\
proc auto_execok name {\n\
global auto_execs env tcl_platform\n\
\n\
if {[info exists auto_execs($name)]} {\n\
return $auto_execs($name)\n\
}\n\
set auto_execs($name) \"\"\n\
\n\
set shellBuiltins [list cls copy date del erase dir echo mkdir \\\n\
md rename ren rmdir rd time type ver vol]\n\
if {$tcl_platform(os) eq \"Windows NT\"} {\n\
lappend shellBuiltins \"start\"\n\
}\n\
if {[info exists env(PATHEXT)]} {\n\
set execExtensions [split \";$env(PATHEXT)\" \";\"]\n\
} else {\n\
set execExtensions [list {} .com .exe .bat .cmd]\n\
}\n\
\n\
if {$name in $shellBuiltins} {\n\
set cmd $env(COMSPEC)\n\
if {[file exists $cmd]} {\n\
set cmd [file attributes $cmd -shortname]\n\
}\n\
return [set auto_execs($name) [list $cmd /c $name]]\n\
}\n\
\n\
if {[llength [file split $name]] != 1} {\n\
foreach ext $execExtensions {\n\
set file ${name}${ext}\n\
if {[file exists $file] && ![file isdirectory $file]} {\n\
return [set auto_execs($name) [list $file]]\n\
}\n\
}\n\
return \"\"\n\
}\n\
\n\
set path \"[file dirname [info nameof]];.;\"\n\
if {[info exists env(WINDIR)]} {\n\
set windir $env(WINDIR) \n\
}\n\
if {[info exists windir]} {\n\
if {$tcl_platform(os) eq \"Windows NT\"} {\n\
append path \"$windir/system32;\"\n\
}\n\
append path \"$windir/system;$windir;\"\n\
}\n\
\n\
foreach var {PATH Path path} {\n\
if {[info exists env($var)]} {\n\
append path \";$env($var)\"\n\
}\n\
}\n\
\n\
foreach dir [split $path {;}] {\n\
if {[info exists checked($dir)] || ($dir eq {})} { continue }\n\
set checked($dir) {}\n\
foreach ext $execExtensions {\n\
set file [file join $dir ${name}${ext}]\n\
if {[file exists $file] && ![file isdirectory $file]} {\n\
return [set auto_execs($name) [list $file]]\n\
}\n\
}\n\
}\n\
return \"\"\n\
}\n\
\n\
} else {\n\
proc auto_execok name {\n\
global auto_execs env\n\
\n\
if {[info exists auto_execs($name)]} {\n\
return $auto_execs($name)\n\
}\n\
set auto_execs($name) \"\"\n\
if {[llength [file split $name]] != 1} {\n\
if {[file executable $name] && ![file isdirectory $name]} {\n\
set auto_execs($name) [list $name]\n\
}\n\
return $auto_execs($name)\n\
}\n\
foreach dir [split $env(PATH) :] {\n\
if {$dir eq \"\"} {\n\
set dir .\n\
}\n\
set file [file join $dir $name]\n\
if {[file executable $file] && ![file isdirectory $file]} {\n\
set auto_execs($name) [list $file]\n\
return $auto_execs($name)\n\
}\n\
}\n\
return \"\"\n\
}\n\
\n\
}\n\
\n\
proc tcl::CopyDirectory {action src dest} {\n\
set nsrc [file normalize $src]\n\
set ndest [file normalize $dest]\n\
\n\
if {$action eq \"renaming\"} {\n\
if {$nsrc in [file volumes]} {\n\
return -code error \"error $action \\\"$src\\\" to\\\n\
\\\"$dest\\\": trying to rename a volume or move a directory\\\n\
into itself\"\n\
}\n\
}\n\
if {[file exists $dest]} {\n\
if {$nsrc eq $ndest} {\n\
return -code error \"error $action \\\"$src\\\" to\\\n\
\\\"$dest\\\": trying to rename a volume or move a directory\\\n\
into itself\"\n\
}\n\
if {$action eq \"copying\"} {\n\
} else {\n\
set existing [glob -nocomplain -directory $dest * .*]\n\
lappend existing {*}[glob -nocomplain -directory $dest \\\n\
-type hidden * .*]\n\
foreach s $existing {\n\
if {([file tail $s] ne \".\") && ([file tail $s] ne \"..\")} {\n\
return -code error \"error $action \\\"$src\\\" to\\\n\
\\\"$dest\\\": file already exists\"\n\
}\n\
}\n\
}\n\
} else {\n\
if {[string first $nsrc $ndest] != -1} {\n\
set srclen [expr {[llength [file split $nsrc]] -1}]\n\
set ndest [lindex [file split $ndest] $srclen]\n\
if {$ndest eq [file tail $nsrc]} {\n\
return -code error \"error $action \\\"$src\\\" to\\\n\
\\\"$dest\\\": trying to rename a volume or move a directory\\\n\
into itself\"\n\
}\n\
}\n\
file mkdir $dest\n\
}\n\
set filelist [concat [glob -nocomplain -directory $src *] \\\n\
[glob -nocomplain -directory $src -types hidden *]]\n\
\n\
foreach s [lsort -unique $filelist] {\n\
if {([file tail $s] ne \".\") && ([file tail $s] ne \"..\")} {\n\
file copy -force $s [file join $dest [file tail $s]]\n\
}\n\
}\n\
return\n\
}\n\
\n\
\n\
namespace eval tcl {\n\
variable history\n\
if {![info exists history]} {\n\
array set history {\n\
nextid 0\n\
keep 20\n\
oldest -20\n\
}\n\
}\n\
}\n\
\n\
\n\
proc history {args} {\n\
set len [llength $args]\n\
if {$len == 0} {\n\
return [tcl::HistInfo]\n\
}\n\
set key [lindex $args 0]\n\
set options \"add, change, clear, event, info, keep, nextid, or redo\"\n\
switch -glob -- $key {\n\
a* { # history add\n\
\n\
if {$len > 3} {\n\
return -code error \"wrong # args: should be \\\"history add event ?exec?\\\"\"\n\
}\n\
if {![string match $key* add]} {\n\
return -code error \"bad option \\\"$key\\\": must be $options\"\n\
}\n\
if {$len == 3} {\n\
set arg [lindex $args 2]\n\
if {! ([string match e* $arg] && [string match $arg* exec])} {\n\
return -code error \"bad argument \\\"$arg\\\": should be \\\"exec\\\"\"\n\
}\n\
}\n\
return [tcl::HistAdd [lindex $args 1] [lindex $args 2]]\n\
}\n\
ch* { # history change\n\
\n\
if {($len > 3) || ($len < 2)} {\n\
return -code error \"wrong # args: should be \\\"history change newValue ?event?\\\"\"\n\
}\n\
if {![string match $key* change]} {\n\
return -code error \"bad option \\\"$key\\\": must be $options\"\n\
}\n\
if {$len == 2} {\n\
set event 0\n\
} else {\n\
set event [lindex $args 2]\n\
}\n\
\n\
return [tcl::HistChange [lindex $args 1] $event]\n\
}\n\
cl* { # history clear\n\
\n\
if {($len > 1)} {\n\
return -code error \"wrong # args: should be \\\"history clear\\\"\"\n\
}\n\
if {![string match $key* clear]} {\n\
return -code error \"bad option \\\"$key\\\": must be $options\"\n\
}\n\
return [tcl::HistClear]\n\
}\n\
e* { # history event\n\
\n\
if {$len > 2} {\n\
return -code error \"wrong # args: should be \\\"history event ?event?\\\"\"\n\
}\n\
if {![string match $key* event]} {\n\
return -code error \"bad option \\\"$key\\\": must be $options\"\n\
}\n\
if {$len == 1} {\n\
set event -1\n\
} else {\n\
set event [lindex $args 1]\n\
}\n\
return [tcl::HistEvent $event]\n\
}\n\
i* { # history info\n\
\n\
if {$len > 2} {\n\
return -code error \"wrong # args: should be \\\"history info ?count?\\\"\"\n\
}\n\
if {![string match $key* info]} {\n\
return -code error \"bad option \\\"$key\\\": must be $options\"\n\
}\n\
return [tcl::HistInfo [lindex $args 1]]\n\
}\n\
k* { # history keep\n\
\n\
if {$len > 2} {\n\
return -code error \"wrong # args: should be \\\"history keep ?count?\\\"\"\n\
}\n\
if {$len == 1} {\n\
return [tcl::HistKeep]\n\
} else {\n\
set limit [lindex $args 1]\n\
if {[catch {expr {~$limit}}] || ($limit < 0)} {\n\
return -code error \"illegal keep count \\\"$limit\\\"\"\n\
}\n\
return [tcl::HistKeep $limit]\n\
}\n\
}\n\
n* { # history nextid\n\
\n\
if {$len > 1} {\n\
return -code error \"wrong # args: should be \\\"history nextid\\\"\"\n\
}\n\
if {![string match $key* nextid]} {\n\
return -code error \"bad option \\\"$key\\\": must be $options\"\n\
}\n\
return [expr {$tcl::history(nextid) + 1}]\n\
}\n\
r* { # history redo\n\
\n\
if {$len > 2} {\n\
return -code error \"wrong # args: should be \\\"history redo ?event?\\\"\"\n\
}\n\
if {![string match $key* redo]} {\n\
return -code error \"bad option \\\"$key\\\": must be $options\"\n\
}\n\
return [tcl::HistRedo [lindex $args 1]]\n\
}\n\
default {\n\
return -code error \"bad option \\\"$key\\\": must be $options\"\n\
}\n\
}\n\
}\n\
\n\
\n\
proc tcl::HistAdd {command {exec {}}} {\n\
variable history\n\
\n\
if {[string trim $command] eq \"\"} {\n\
return \"\"\n\
}\n\
\n\
set i [incr history(nextid)]\n\
set history($i) $command\n\
set j [incr history(oldest)]\n\
unset -nocomplain history($j)\n\
if {[string match e* $exec]} {\n\
return [uplevel #0 $command]\n\
} else {\n\
return {}\n\
}\n\
}\n\
\n\
\n\
proc tcl::HistKeep {{limit {}}} {\n\
variable history\n\
if {$limit eq \"\"} {\n\
return $history(keep)\n\
} else {\n\
set oldold $history(oldest)\n\
set history(oldest) [expr {$history(nextid) - $limit}]\n\
for {} {$oldold <= $history(oldest)} {incr oldold} {\n\
unset -nocomplain history($oldold)\n\
}\n\
set history(keep) $limit\n\
}\n\
}\n\
\n\
\n\
proc tcl::HistClear {} {\n\
variable history\n\
set keep $history(keep)\n\
unset history\n\
array set history [list \\\n\
nextid 0 \\\n\
keep $keep \\\n\
oldest -$keep \\\n\
]\n\
}\n\
\n\
\n\
proc tcl::HistInfo {{num {}}} {\n\
variable history\n\
if {$num eq \"\"} {\n\
set num [expr {$history(keep) + 1}]\n\
}\n\
set result {}\n\
set newline \"\"\n\
for {set i [expr {$history(nextid) - $num + 1}]} \\\n\
{$i <= $history(nextid)} {incr i} {\n\
if {![info exists history($i)]} {\n\
continue\n\
}\n\
set cmd [string map [list \\n \\n\\t] [string trimright $history($i) \\ \\n]]\n\
append result $newline[format \"%6d %s\" $i $cmd]\n\
set newline \\n\n\
}\n\
return $result\n\
}\n\
\n\
\n\
proc tcl::HistRedo {{event -1}} {\n\
variable history\n\
if {$event eq \"\"} {\n\
set event -1\n\
}\n\
set i [HistIndex $event]\n\
if {$i == $history(nextid)} {\n\
return -code error \"cannot redo the current event\"\n\
}\n\
set cmd $history($i)\n\
HistChange $cmd 0\n\
uplevel #0 $cmd\n\
}\n\
\n\
\n\
proc tcl::HistIndex {event} {\n\
variable history\n\
if {[catch {expr {~$event}}]} {\n\
for {set i [expr {$history(nextid)-1}]} {[info exists history($i)]} \\\n\
{incr i -1} {\n\
if {[string match $event* $history($i)]} {\n\
return $i;\n\
}\n\
if {[string match $event $history($i)]} {\n\
return $i;\n\
}\n\
}\n\
return -code error \"no event matches \\\"$event\\\"\"\n\
} elseif {$event <= 0} {\n\
set i [expr {$history(nextid) + $event}]\n\
} else {\n\
set i $event\n\
}\n\
if {$i <= $history(oldest)} {\n\
return -code error \"event \\\"$event\\\" is too far in the past\"\n\
}\n\
if {$i > $history(nextid)} {\n\
return -code error \"event \\\"$event\\\" hasn't occured yet\"\n\
}\n\
return $i\n\
}\n\
\n\
\n\
proc tcl::HistEvent {event} {\n\
variable history\n\
set i [HistIndex $event]\n\
if {[info exists history($i)]} {\n\
return [string trimright $history($i) \\ \\n]\n\
} else {\n\
return \"\";\n\
}\n\
}\n\
\n\
\n\
proc tcl::HistChange {cmd {event 0}} {\n\
variable history\n\
set i [HistIndex $event]\n\
set history($i) $cmd\n\
}\n\
\n\
\n\
if {$::tcl_platform(platform) eq \"windows\"} {\n\
set ::tcl_wordchars {\\S}\n\
set ::tcl_nonwordchars {\\s}\n\
} else {\n\
set ::tcl_wordchars {\\w}\n\
set ::tcl_nonwordchars {\\W}\n\
}\n\
\n\
\n\
namespace eval ::tcl {\n\
variable WordBreakRE\n\
array set WordBreakRE {}\n\
\n\
proc UpdateWordBreakREs args {\n\
global tcl_wordchars tcl_nonwordchars\n\
variable WordBreakRE\n\
\n\
set letter $tcl_wordchars\n\
set space $tcl_nonwordchars\n\
\n\
set WordBreakRE(after) \"$letter$space|$space$letter\"\n\
set WordBreakRE(before) \"^.*($letter$space|$space$letter)\"\n\
set WordBreakRE(end) \"$space*$letter+$space\"\n\
set WordBreakRE(next) \"$letter*$space+$letter\"\n\
set WordBreakRE(previous) \"$space*($letter+)$space*\\$\"\n\
}\n\
\n\
UpdateWordBreakREs\n\
trace add variable ::tcl_wordchars write ::tcl::UpdateWordBreakREs\n\
trace add variable ::tcl_nonwordchars write ::tcl::UpdateWordBreakREs\n\
}\n\
\n\
\n\
proc tcl_wordBreakAfter {str start} {\n\
variable ::tcl::WordBreakRE\n\
set result {-1 -1}\n\
regexp -indices -start $start $WordBreakRE(after) $str result\n\
return [lindex $result 1]\n\
}\n\
\n\
\n\
proc tcl_wordBreakBefore {str start} {\n\
variable ::tcl::WordBreakRE\n\
set result {-1 -1}\n\
regexp -indices $WordBreakRE(before) [string range $str 0 $start] result\n\
return [lindex $result 1]\n\
}\n\
\n\
\n\
proc tcl_endOfWord {str start} {\n\
variable ::tcl::WordBreakRE\n\
set result {-1 -1}\n\
regexp -indices -start $start $WordBreakRE(end) $str result\n\
return [lindex $result 1]\n\
}\n\
\n\
\n\
proc tcl_startOfNextWord {str start} {\n\
variable ::tcl::WordBreakRE\n\
set result {-1 -1}\n\
regexp -indices -start $start $WordBreakRE(next) $str result\n\
return [lindex $result 1]\n\
}\n\
\n\
\n\
proc tcl_startOfPreviousWord {str start} {\n\
variable ::tcl::WordBreakRE\n\
set word {-1 -1}\n\
regexp -indices $WordBreakRE(previous) [string range $str 0 $start-1] \\\n\
result word\n\
return [lindex $word 0]\n\
}\n\
\n\
package provide http 1.0\n\
\n\
array set http {\n\
-accept */*\n\
-proxyhost {}\n\
-proxyport {}\n\
-useragent {Tcl http client package 1.0}\n\
-proxyfilter httpProxyRequired\n\
}\n\
proc http_config {args} {\n\
global http\n\
set options [lsort [array names http -*]]\n\
set usage [join $options \", \"]\n\
if {[llength $args] == 0} {\n\
set result {}\n\
foreach name $options {\n\
lappend result $name $http($name)\n\
}\n\
return $result\n\
}\n\
regsub -all -- - $options {} options\n\
set pat ^-([join $options |])$\n\
if {[llength $args] == 1} {\n\
set flag [lindex $args 0]\n\
if {[regexp -- $pat $flag]} {\n\
return $http($flag)\n\
} else {\n\
return -code error \"Unknown option $flag, must be: $usage\"\n\
}\n\
} else {\n\
foreach {flag value} $args {\n\
if {[regexp -- $pat $flag]} {\n\
set http($flag) $value\n\
} else {\n\
return -code error \"Unknown option $flag, must be: $usage\"\n\
}\n\
}\n\
}\n\
}\n\
\n\
proc httpFinish { token {errormsg \"\"} } {\n\
upvar #0 $token state\n\
global errorInfo errorCode\n\
if {[string length $errormsg] != 0} {\n\
set state(error) [list $errormsg $errorInfo $errorCode]\n\
set state(status) error\n\
}\n\
catch {close $state(sock)}\n\
catch {after cancel $state(after)}\n\
if {[info exists state(-command)]} {\n\
if {[catch {eval $state(-command) {$token}} err]} {\n\
if {[string length $errormsg] == 0} {\n\
set state(error) [list $err $errorInfo $errorCode]\n\
set state(status) error\n\
}\n\
}\n\
unset state(-command)\n\
}\n\
}\n\
proc http_reset { token {why reset} } {\n\
upvar #0 $token state\n\
set state(status) $why\n\
catch {fileevent $state(sock) readable {}}\n\
httpFinish $token\n\
if {[info exists state(error)]} {\n\
set errorlist $state(error)\n\
unset state(error)\n\
eval error $errorlist\n\